Steam or air blower.



E. RENARD.

. STEAM OR AIR BLOWER. APPLICATION FILED m. 1, 1913.

Patented Mar. 24, 1911 Inventor Witnesses S y e n r O t t A EDWARD RENARD, OF LEWISTOWN, PENNSYLVANIA.

STEAM OR AIR BLOWER.

Specification of Letters Patent.

Patented Mar. 24, 1914.

Application filed April 1, 1913 Serial No. 758,238.

To all whom it may concern Be it known that I, EDWARD RENARD, a citizen of the United States, residing at Lewistown, in the county of Mifilm and State of Pennsylvania, have invented a new and useful Steam or Air Blower, of which the following is a specification.

The device forming the subject matter of this application is a blower adapted to be operated by steam, compressed air or any other fluid, for drawing air into a discharge member, the device being adapted to be employed in connection with furnaces, gas producer, forges, and elsewhere, under circumstances which demand a forced draft.

One object of the present invention is to provide a device of this type, the conduit of which comprises a plurality of interengaged thimbles, the construction being such that the conduit may be lengthened or shortened at will.

Another object of the invention 1s to provide novel means whereby the air may be admitted to the conduit.

Another object of the invention is to provide a device of the class described having a combined drainage and air inlet means.

It is within the scope of the invention to improve generally and increase the utility of, devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing :--Figure 1 shows the invention in longitudinal section, parts being broken away; Fig. 2 is a cross section on the line 22 of Fig. 1; Fig. 3 is a cross section on the line 38 of Fig. 1; Fig. 4 is a longitudinal sectional detail.

In carrying out the invention there is provided a base 1 supporting a discharge member 2, preferably taking the form of a pipe, the discharge member 2 being equipped with an upright neck 3 terminatin in a funnel 4E. The neck 3 is provided, a jacent the bottom of the discharge member 2 with a funnel shaped, outstanding tube 5 which bles 6 are of conical form, and the lowerend of any one primary thimble extends downwardly into the upper end of the next lower secondary thimble. The smaller ends of the thimbles 6 are disposed toward the discharge member'2, the smaller ends of the thimbles increasing in diameter from the uppermost thimble to the lowermost thimble. The thimbles 6 constitute a conduit, and owing to the relations existing between the diameters of the smaller ends of the thimbles, the conduit, in its interior, flares downwardly and toward the discharge member 2. By reason of this construction. the fluid is permitted to expand, when forced into the conduit, and the fluid which is adjacent the lower end of the conduit will not tend to hold back the fluid which is adjacent the upper end of the conduit. The thimbles 6 are provided with ribs 7. There may be any number of ribs 7. In the draw.- ings, three ribs 7 are shown upon each thimble. The ribs 7 ordinarily are secured to the lowermost portion of each thimble 6 and projecting downwardly into the next lower thimble, but it is entirely obvious that each rib may be secured to what may be considered a lower thimble, and may project upwardly upon what may be considered a superposed or upper thimble. The ribs 7 serve to space the side walls of the thimbles 6 apart, so that the air may be drawn into the conduit, between the side walls of the thimbles as will be understood readily by referring to Fig. 1. Each rib 7 is provided with an outstanding lug 7 which engages the upper edge of the next lower thimble.

The pipe whereby steam, air under pressure, or other fluid is supplied to the conduit, is denoted by the numeral 8, the same being provided with the usual cut ofi valve 9. One end of the pipe 8 extends into the uppermost thimble 6 and is equipped with a nozzle 10. The nozzle 10 is provided with outstanding ribs 11 supporting a conical shield 12.

The top thimble and the funnel may be I provided with ears 20 receiving tie rods 21 held in place by nuts 22.

In operation, when fluid under pressure traverses the pipe 8 and the nozzle 10, air will be drawn inwardly through the spaces existing between the side walls of thethimble 6, and this air will be forced by the fluid under pressure through the discharge member 2. Air, to some extentwill be drawn inwardly through the tube 5, and out of the tube 5, the water of condensation and other heavy matter may drip.

Having thus described the. invention, what is claimed is 1. In a device of the class described, a conduit comprising separable, telescopic, conicalthimbles, each thimble bein provided upon its, outer surface and adjacent its smaller end with a rib which extends approximately parallel to the axis of the conduit beyond the smaller end of saidthimble andengages the inner face of the larger end of an adjoining thimble.

2. In a device of the class described, a conduit comprising primary and secondary conical thimbles, the smaller end of the primary thimble being located within the larger end of the secondary thimble, one thimble being provided with ribswhich extend but part way across the outer face of the primary thimble above the secondary thimble and extend across the inner face of the secondary thimble below the smaller end of the primary thimble.

3. In a device of the class described, a

funnehlocated adjacent the bottom of the discharge member and constituting a c0mbined air inlet and an outlet for water of condensation; a conduit supported upon the neck; and a nozzle discharging into the conduit.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

EDWARD RENARD.

Witnesses ALEXANDER PATTERSON, J r., ROBERT E. HARPER, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latcntl, Washington, D. 0. 

